Benton County, IA

327 public highway bridges

Benton County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Benton County, Iowa contains 327 public highway bridges. Roughly 32.1% are rated “Good,” 42.2% “Fair,” and 23.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

327
Total Bridges
32.1%
Good
42.2%
Fair
23.5%
Poor Condition

Condition Distribution

Good
32.1% (105)
Fair
42.2% (138)
Poor
23.5% (77)

All Bridges (327)

FM

Good

Over: ROCK CREEK

085120602, Benton, IA

Built 2006 Load: 35.3 t ADT: 1,340

FM

Good

Over: BLUE CREEK

086092602, Benton, IA

Built 2016 Load: 35.3 t ADT: 69

FM

Good

Over: ROCK CK

085120502, Benton, IA

Built 1989 Load: 36.3 t ADT: 20

LOCAL

Good

Over: HINKLE CREEK

085112807, Benton, IA

Built 1989 Load: 36.4 t ADT: 50

LOCAL

Good

Over: BR BLUE CREEK

086092201, Benton, IA

Built 1988 Load: 37.1 t ADT: 44

LOCAL

Good

Over: SPRING CKEEK

086111602, Benton, IA

Built 1991 Load: 37.1 t ADT: 20

E24 61ST ST LANE

Good

Over: STREAM

085093303, Benton, IA

Built 2020 Load: 37.6 t ADT: 1,532

SR V 40

Good

Over: PRAIRIE CREEK

083121002, Benton, IA

Built 2011 Load: 38.9 t ADT: 25

11TH AVE

Good

Over: TRIBUTARY TO STEIN CREEK

084122902, Benton, IA

Built 2020 Load: 38.9 t ADT: 15

FM

Good

Over: PRAIRIE CREEK

083110601, Benton, IA

Built 2008 Load: 39.5 t ADT: 25

LOCAL

Good

Over: ROCK CREEK

086110801, Benton, IA

Built 1992 Load: 39.6 t ADT: 20

FM

Good

Over: ROCK CREEK

086110802, Benton, IA

Built 1988 Load: 39.6 t ADT: 70

LOCAL

Good

Over: PRATT CK

086112602, Benton, IA

Built 1988 Load: 39.6 t ADT: 20

13TH AVE

Good

Over: BRANCH OF STEIN CREEK

084122702, Benton, IA

Built 1998 Load: 39.9 t ADT: 15

30 AVE DR

Good

Over: BRANCH OPOSSUM CREEK

084090400, Benton, IA

Built 2021 Load: 40.2 t ADT: 168

50TH ST

Good

Over: SPRING CREEK

086110303, Benton, IA

Built 2012 Load: 40.2 t ADT: 80

FM 1849

Good

Over: STEIN CREEK

084122202, Benton, IA

Built 1989 Load: 40.7 t ADT: 10

LOCAL

Good

Over: PRATT CK

085122301, Benton, IA

Built 2007 Load: 40.8 t ADT: 29

LOCAL

Good

Over: BLUE CREEK

086091305, Benton, IA

Built 2007 Load: 40.8 t ADT: 33

US 30 EB

Good

Over: UNNAMED CREEK

1.2 MI. W. OF CO. RD. V66, Benton, IA

Built 2022 Load: 40.8 t ADT: 3,800

V66 22ND AVE

Good

Over: PRATT CREEK

086113600, Benton, IA

Built 2021 Load: 41.1 t ADT: 206

LOCAL

Good

Over: MUD CREEK

084100701, Benton, IA

Built 2010 Load: 41.8 t ADT: 20

25TH AVE

Good

Over: MUD CREEK

085102818, Benton, IA

Built 2013 Load: 41.8 t ADT: 78

FM

Good

Over: PRAIRIE CREEK

082102608, Benton, IA

Built 2002 Load: 44.7 t ADT: 206

E22 61ST ST

Good

Over: STEIN CREEK

085123101, Benton, IA

Built 2015 Load: 44.7 t ADT: 340

FM (LWC)

Good

Over: SMALL STREAM

082122905, Benton, IA

Built 1993 Load: 45.4 t ADT: 410

LOCAL

Good

Over: BR PRAIRIE CREEK

083122301, Benton, IA

Built 1994 Load: 45.7 t ADT: 140

LOCAL

Good

Over: BR STEIN CK

084122802, Benton, IA

Built 1999 Load: 45.7 t ADT: 26

LOCAL

Good

Over: BR HINKLE CK

085112201, Benton, IA

Built 2001 Load: 45.7 t ADT: 40

FM

Good

Over: WILDCAT CREEK

083100601, Benton, IA

Built 1998 Load: 46.3 t ADT: 15

E24 33RD AVE DR

Good

Over: SPRING CREEK

085092504, Benton, IA

Built 2015 Load: 47.0 t ADT: 334

LOCAL

Good

Over: WILDCAT CK

084091702, Benton, IA

Built 2004 Load: 47.2 t ADT: 29

FM

Good

Over: ROCK CREEK

086123402, Benton, IA

Built 2005 Load: 48.2 t ADT: 10

LOCAL

Good

Over: STREAM

084091901, Benton, IA

Built 2004 Load: 49.2 t ADT: 20

LOCAL

Good

Over: PRATT CREEK

085110701, Benton, IA

Built 1997 Load: 50.0 t ADT: 26

65TH ST

Good

Over: MUD CREEK

084112201, Benton, IA

Built 2000 Load: 51.1 t ADT: 45

I 380

Good

Over: DRAINAGE DITCH

0.5 mi. S of Jct. IA 150, Benton, IA

Built 1982 Load: 51.2 t ADT: 21,300

LOCAL

Good

Over: SMALL CREEK

084120801, Benton, IA

Built 1998 Load: 52.8 t ADT: 34

LOCAL

Good

Over: DRY CK

083093001, Benton, IA

Built 2001 Load: 53.5 t ADT: 5

E22 61ST ST

Good

Over: PRATT CREEK

085123501, Benton, IA

Built 2015 Load: 55.7 t ADT: 334

LOCAL

Good

Over: BR MUD CREEK

084111801, Benton, IA

Built 2001 Load: 57.9 t ADT: 15

LOCAL

Good

Over: SPRING CREEK

086111501, Benton, IA

Built 1996 Load: 58.4 t ADT: 26

72 ST

Good

Over: BR. OF PRAIRE CREEK

083112501, Benton, IA

Built 2000 Load: 67.4 t ADT: 15

LOCAL

Good

Over: MUD CREEK

084100602, Benton, IA

Built 1998 Load: 69.4 t ADT: 40

29 AVE

Good

Over: BR LITTLE BEAR CREEK

083090504, Benton, IA

Built 2000 Load: 71.3 t ADT: 11

LOCAL (LWC)

Good

Over: BR PRAIRIE CREEK

082091902, Benton, IA

Built 1996 Load: 89.9 t ADT: 20

69TH ST

Good

Over: SMALL STREAM

083120901, Benton, IA

Built 2000 Load: 99.9 t ADT: 15

FM

Good

Over: BR WILDCAT CK

084103101, Benton, IA

Built 2001 Load: 99.9 t ADT: 15

LOCAL

Good

Over: BR WILD CAT CREEK

084102801, Benton, IA

Built 1997 Load: 99.9 t ADT: 44

LOCAL

Good

Over: BR. OF PRATT CREEK

086112601, Benton, IA

Built 1999 Load: 99.9 t ADT: 11

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.